forked from hyperledger/fabric
/
querycommitted.go
257 lines (218 loc) · 7.28 KB
/
querycommitted.go
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/*
Copyright IBM Corp. All Rights Reserved.
SPDX-License-Identifier: Apache-2.0
*/
package chaincode
import (
"context"
"fmt"
"io"
"os"
"sort"
"strings"
"github.com/golang/protobuf/proto"
cb "github.com/hyperledger/fabric-protos-go/common"
pb "github.com/hyperledger/fabric-protos-go/peer"
lb "github.com/hyperledger/fabric-protos-go/peer/lifecycle"
"github.com/hyperledger/fabric/bccsp"
"github.com/hyperledger/fabric/protoutil"
"github.com/pkg/errors"
"github.com/spf13/cobra"
"github.com/spf13/viper"
)
// CommittedQuerier holds the dependencies needed to query
// the committed chaincode definitions
type CommittedQuerier struct {
Command *cobra.Command
Input *CommittedQueryInput
EndorserClient EndorserClient
Signer Signer
Writer io.Writer
}
type CommittedQueryInput struct {
ChannelID string
Name string
OutputFormat string
}
// QueryCommittedCmd returns the cobra command for
// querying a committed chaincode definition given
// the chaincode name
func QueryCommittedCmd(c *CommittedQuerier, cryptoProvider bccsp.BCCSP) *cobra.Command {
chaincodeQueryCommittedCmd := &cobra.Command{
Use: "querycommitted",
Short: "Query the committed chaincode definitions by channel on a peer.",
Long: "Query the committed chaincode definitions by channel on a peer. Optional: provide a chaincode name to query a specific definition.",
RunE: func(cmd *cobra.Command, args []string) error {
if c == nil {
ccInput := &ClientConnectionsInput{
CommandName: cmd.Name(),
EndorserRequired: true,
ChannelID: channelID,
PeerAddresses: peerAddresses,
TLSRootCertFiles: tlsRootCertFiles,
ConnectionProfilePath: connectionProfilePath,
TLSEnabled: viper.GetBool("peer.tls.enabled"),
}
cc, err := NewClientConnections(ccInput, cryptoProvider)
if err != nil {
return err
}
cqInput := &CommittedQueryInput{
ChannelID: channelID,
Name: chaincodeName,
OutputFormat: output,
}
c = &CommittedQuerier{
Command: cmd,
EndorserClient: cc.EndorserClients[0],
Input: cqInput,
Signer: cc.Signer,
Writer: os.Stdout,
}
}
return c.Query()
},
}
flagList := []string{
"channelID",
"name",
"peerAddresses",
"tlsRootCertFiles",
"connectionProfile",
"output",
}
attachFlags(chaincodeQueryCommittedCmd, flagList)
return chaincodeQueryCommittedCmd
}
// Query returns the committed chaincode definition
// for a given channel and chaincode name
func (c *CommittedQuerier) Query() error {
if c.Command != nil {
// Parsing of the command line is done so silence cmd usage
c.Command.SilenceUsage = true
}
err := c.validateInput()
if err != nil {
return err
}
proposal, err := c.createProposal()
if err != nil {
return errors.WithMessage(err, "failed to create proposal")
}
signedProposal, err := signProposal(proposal, c.Signer)
if err != nil {
return errors.WithMessage(err, "failed to create signed proposal")
}
proposalResponse, err := c.EndorserClient.ProcessProposal(context.Background(), signedProposal)
if err != nil {
return errors.WithMessage(err, "failed to endorse proposal")
}
if proposalResponse == nil {
return errors.New("received nil proposal response")
}
if proposalResponse.Response == nil {
return errors.New("received proposal response with nil response")
}
if proposalResponse.Response.Status != int32(cb.Status_SUCCESS) {
return errors.Errorf("query failed with status: %d - %s", proposalResponse.Response.Status, proposalResponse.Response.Message)
}
if strings.ToLower(c.Input.OutputFormat) == "json" {
return c.printResponseAsJSON(proposalResponse)
}
return c.printResponse(proposalResponse)
}
func (c *CommittedQuerier) printResponseAsJSON(proposalResponse *pb.ProposalResponse) error {
if c.Input.Name != "" {
return printResponseAsJSON(proposalResponse, &lb.QueryChaincodeDefinitionResult{}, c.Writer)
}
return printResponseAsJSON(proposalResponse, &lb.QueryChaincodeDefinitionsResult{}, c.Writer)
}
// printResponse prints the information included in the response
// from the server as human readable plain-text.
func (c *CommittedQuerier) printResponse(proposalResponse *pb.ProposalResponse) error {
if c.Input.Name != "" {
result := &lb.QueryChaincodeDefinitionResult{}
err := proto.Unmarshal(proposalResponse.Response.Payload, result)
if err != nil {
return errors.Wrap(err, "failed to unmarshal proposal response's response payload")
}
fmt.Fprintf(c.Writer, "Committed chaincode definition for chaincode '%s' on channel '%s':\n", c.Input.Name, c.Input.ChannelID)
c.printSingleChaincodeDefinition(result)
c.printApprovals(result)
return nil
}
result := &lb.QueryChaincodeDefinitionsResult{}
err := proto.Unmarshal(proposalResponse.Response.Payload, result)
if err != nil {
return errors.Wrap(err, "failed to unmarshal proposal response's response payload")
}
fmt.Fprintf(c.Writer, "Committed chaincode definitions on channel '%s':\n", c.Input.ChannelID)
for _, cd := range result.ChaincodeDefinitions {
fmt.Fprintf(c.Writer, "Name: %s, ", cd.Name)
c.printSingleChaincodeDefinition(cd)
fmt.Fprintf(c.Writer, "\n")
}
return nil
}
type ChaincodeDefinition interface {
GetVersion() string
GetSequence() int64
GetEndorsementPlugin() string
GetValidationPlugin() string
}
func (c *CommittedQuerier) printSingleChaincodeDefinition(cd ChaincodeDefinition) {
fmt.Fprintf(c.Writer, "Version: %s, Sequence: %d, Endorsement Plugin: %s, Validation Plugin: %s", cd.GetVersion(), cd.GetSequence(), cd.GetEndorsementPlugin(), cd.GetValidationPlugin())
}
func (c *CommittedQuerier) printApprovals(qcdr *lb.QueryChaincodeDefinitionResult) {
orgs := []string{}
approved := qcdr.GetApprovals()
for org := range approved {
orgs = append(orgs, org)
}
sort.Strings(orgs)
approvals := ""
for _, org := range orgs {
approvals += fmt.Sprintf("%s: %t, ", org, approved[org])
}
approvals = strings.TrimSuffix(approvals, ", ")
fmt.Fprintf(c.Writer, ", Approvals: [%s]\n", approvals)
}
func (c *CommittedQuerier) validateInput() error {
if c.Input.ChannelID == "" {
return errors.New("channel name must be specified")
}
return nil
}
func (c *CommittedQuerier) createProposal() (*pb.Proposal, error) {
var function string
var args proto.Message
if c.Input.Name != "" {
function = "QueryChaincodeDefinition"
args = &lb.QueryChaincodeDefinitionArgs{
Name: c.Input.Name,
}
} else {
function = "QueryChaincodeDefinitions"
args = &lb.QueryChaincodeDefinitionsArgs{}
}
argsBytes, err := proto.Marshal(args)
if err != nil {
return nil, errors.Wrap(err, "failed to marshal args")
}
ccInput := &pb.ChaincodeInput{Args: [][]byte{[]byte(function), argsBytes}}
cis := &pb.ChaincodeInvocationSpec{
ChaincodeSpec: &pb.ChaincodeSpec{
ChaincodeId: &pb.ChaincodeID{Name: lifecycleName},
Input: ccInput,
},
}
signerSerialized, err := c.Signer.Serialize()
if err != nil {
return nil, errors.WithMessage(err, "failed to serialize identity")
}
proposal, _, err := protoutil.CreateProposalFromCIS(cb.HeaderType_ENDORSER_TRANSACTION, c.Input.ChannelID, cis, signerSerialized)
if err != nil {
return nil, errors.WithMessage(err, "failed to create ChaincodeInvocationSpec proposal")
}
return proposal, nil
}